Printing-telegraph.



PATENTED DEC. 31, v1907. J. 0. BARCLAY.

PRINTING TELEGRAPH. APPLICATION FILED APR. 22, 1905.

v lll lllllli g Q INVENTOR I v rakc fl eqg ATTORNEY J. G. BARCLAY.

PRINTING TELEGRAPH. APPLICATION FILED APR.22-,1905.

PATENTED DEC. 31, 1907.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

JOHN C. BARCLAY, OF NEW YORK, N. Y., ASSIGNOR TO WESTERN UNION TELEGRAPHCOMPANY, OF NEW YORK, N. Y.,

A CORPORATION OF NEW YORK.

PRINTING-TELEGRAPH.

* Specification of Letters Patent;

Patented Dec. 31, 1907.

To all whom' it may concern:

Be it known that I, JOHN C. BARCLAY, a citizen of the United States,residing in the city, county, and State of New York, have inventedcertain new and useful Improvements in Printing-Telegraphs, and I dohereby declare the following to be a full, clear, and exact descriptionof the same, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relatesgto improvements in printing telegraph systems, andparticularly to what are known as stock-ticker systems, and my inventionconsists in means whereby a two-wire ticker or printer circuit may beoperated from a distant transmitter over a single line circuit.

- The objects of my invention are, to facilitate the operation oftelegraph printers requiring more than one operatlng circuit, from adistant transmitter; to permit use of a single circuit to transmit allof the signals required for the operation of such multiplecircuitprinters; and generally, to produce a simple, reliable and efficientprinting telegraph system.

In the accompanying drawings Figure 1- is a diagrammatic view showingthe circuits and instruments of one embodiment of my invention; Fig. 2is a diagrammatic perspective illustrating diagrammatically theessential features of a two-wire ticker such as that referred to herein.

I will describe my invention with particular reference to the two-wireprinting telegra h illustrated and described in United States ettersPatent to Phelps, N 0. 726,566,

dated April 28, 1903. The printing instrument shownin said patent is ofthe general stock-ticker ty e, comprising two typewheels mounte on acommon shaft and driven by a spring-motor, their rotation beingcontrolled by an escapement-magnet and escapeinent mechanism controlledhereby. Said printer also comprises a press magnet in the same circuitas the escapement magnet and arranged to be operated by a prolongedpulse in said circuit; and said printer further comprises a shift magnetand a spring-winding magnet, both located in the same circuit, which isseparate and distinct from the circuit of the escapement and pressmagnets the spring-winding magnet bein operated by periodic, current Isecond circuit, independent of their direction, and the shift magnetbeing operated by reversal of direction of current in said secondcircuit. In the present system, the various signals from the transmitterare for the operation of the escapement and press magnets of the printeror printersare transmitted through the corresponding local circuit, andthe signals for the operation of the shift magnets are transmittedthrough their corresponding local circuit. The employment of a singleline circuit for transniitting all of the signals from the transmitterto the translating apparatus renders of printing telegraphs or tickersin one locality from a distant city or lo'cality.

In Fig. 1 of the accompanying drawings I illustrate one embodiment of mysaid invention diagrammatically. Said drawing shows diagrammatically, atA, the transmitting apparatus and circuits, and at B the translatingapparatus and circuits, and a series of printers controlled thereby, thetwo station's being connected by a line wire L which may be ofconsiderable length. The various parts of the transmitting mechanism areillustrated only diagrammatically, as the construction of these parts iswell understood; and I do not illustrate the construc tion of thereceiving fully illustrated and escribed in the said Phelps patent No.726,566.

Referring first to the transmitting apparatus, at A, 1 desi nates arevoluble shaft, driven in any suita 1e or customary manner, and 2designates the rotary contact armof a sunflower 3, said arm bein carriedby shaft 1.

4 and 5 designate two Iianks of keys of a suitable key-board, only threekeys of each bank being shown, though it willbe'understood that inpractice there will be a much greater number. vThe keys of both banksare shown arranged to make contact, when depressed, with a common row ofcontact points located between the banks of keys. 6, 6, 6 designateneutral relays each electrically connected to and controlled by acorresponding keyof bank 4 and also a cor- '/responding key of bank 5;the contact point 3. yiously, the arrangement is such,

transmitted through a single line circuitto" translating mechanism, bywhich the signals it economically-practicable to operate circuitsrinters as these are when a key of either bank is depressed thecorresponding relay 6 is energized and the circuit to the correspondingsunflower segment completed. In the said Phelps patent above mentioned,the transmitter keys are connected in circuit with their correspondingsunflower segmentsdirectly; but in practice it is preferred to cause thekeys to operate relays controlling the circuits of the sunflowersegments, as here shown.

7 designates a generator supplying current for local purposes, and 8 and9 POSltlVG' and negative current leads thereof. 10 designates a ratchetwheel on shaft 1, 11 a stop magnet, and 12 the armature of said magnet,adapted, when the magnet is energized, to engage said ratchet wheel andarrest the rotation of shaft 1. Said magnet is in a local circuit 13passing from current lead 9 through magnet 11, 'to the rotatingarm 2 ofthe sunflower and thence, when said arm makes contact with a sunflowersegment the circuit of which 18 completedby the corresponding relay 6',through such sunflower segment and relay contact to current lead 8. Itfollows therefore, that when one of the transmitter keys, of eitherbank, is depressed, as soon as the sunflower contact arm makes contactwith the sunflower segment corresponding to that key, stop magnet 11 isenergized, and the rotation of shaft 1 is stopped until said key isreleased.

Shaft 1 carries a commutator, 14, of wellknown construction, the brushesof which commutator are included in a circuit 15 passing from currentlead 9through the commutator and the magnets of two polar relays 16 and17 back through the commutator to current lead 8. This commutatorreverses the direction of the current in circuit 15, as shaft 1 rotates,causing the armatures of relays 16 and 17 to vibrate back and forth.

Numerals l8 and 19 designate two similar enerators, for supplyingcurrent to the line, laying unlike brushes connected toground at 20,their other brushes being connected through wires 21 and 22 to opposingcontact stops of relay 1 6. The armature of this relay is connected bywire 23 to the two contactstops of relay 17; and the armature of saidlatter relay is connected, through means hereinafter described, to theline circuit L. Since the armatures of relays 16 and 17 are vibratingback and forth rapidly whiletransmitter shaft 1 is rotating, generators18 and 19 are connected to theline alternately, and thus the current inthe line is reversed rapidly while shaft 1 is rotating. 'So far as thealternate connection of the two generators 18 and 19 to'the line isconcerned, a single polar relay might be used; but it is found that byemploying two relays, arranged as shown, and by connecting a condenser2% across the stops of relay 16, as shown, the sparking at the contactpoints and brushes may be reduced greatly. v p

Numeral 25 designates a polar relay employed for effecting the operationof the shifting devices of the receiving printers. A circuit 26passesfrom a universal contact bar, of the bank of keys 4 through one ofthe two opposed. magnets of this relay to wire 27' and thence to currentlead 8. This circuit is completed 'whenever one of the keys isdepressed. A similar circuit .28 passes from a universal contact barof-the bank'of keys 5- to the other of the said two opposed magnets ofrelay 25 and thence to wire 27 and so'to current lead 8. This circuitwill be completed when any one'of the keys of bank 5 is depressed. Relay25 controls the circuit 29 from current lead 8through the contact ofsaid relay to the magnet of a relay 30, which may be termed the -shiftrelay and thence back to current lead 9. This circuit is broken whencircuit 26 is complete but is closed when circuit 28 is complete.Another relay 31, termed the repeat'relay is in a circuit 32 whichpasses from current lead 8 to the magnet of relay 31 and thence to arepeat key 33, arranged when operated to close said circuit, and back tocurrent lead 9. A line circuit L passes from the armature of relay 1.7to the back stop 34 of shift relayv 30 and thence through the armatureof said relay to the back stop 35 of repeat relay 31,

and thence through the armature of relay 31 to the translating apparatusof station B. There is a shuntconnection 36 from the armature of relay17 to the armature of shift relay 30, this shunt connection resistance37 which in practice is of about 400 ohms.

lay 30 is concerned whether the armature of said relay be in contactwith its rear or with relay 30 isin. contact with its front stoptheresistance 37 is in circuit, and therefore the line current is weakened.of relay 30 is connected to a leak 39, therecontaining a Because of thisshunt connec-: tion, the hue circuit 18 complete so far as re' its frontstop; though when said armature of The front stop 38 sista'nce of whichis in practice about 1550 ohms; and this leak cooperates with the resstance 37 in shunt circuit 36- to reducethe l ne current when thearmature of shift relay is in contact with its front stop. Repeat-relay31 is provided with a shunt connection 40 j between its back stop andits armature, said shunt connecticn'contaimng a very high resista-ncev41-in practice a resistance of about 12000 ohms. Therefore, when themagnet of the repeat relay is energized the line circuit is not brokenat said relay, but the resistance in the circuit is increased soenormously that the effect is yery nearly the same as it would be if thecircint were broken. high resistance peat relay rather than to breakthe-circuit,

It is preferable to introduce a by the operation of the re in order tohold stationary the armature of relay '45 of the translating apparatus,1

Referring now to the circuits and instruments of the translatingapparatus at station B, current for such apparatus is supplied by localgenerators 42 and current leads 43 and 44. The line wire L is connectedto a polar relay 45, the stops of which are connected to the two currentleads and the armature of which is connected to a circuit 46 passingthrough a rheostat 47 to the front stop of a relay 48 termed the localrepeat relay. Said circuit 46 passes from the armature of relay 48through the printers or tickers of the system, said circuit in practicepassing through the-escapement and press magnets .of such printers (notshown) and serving to control the rotation of the type wheels and theoperation of the press arms thereof. Said circuit is hereinafter termedthe printing circuit. It will be noted that relay 45 repeats in circuit46 the current reversals produced in the line circuit bytransmittingrelays 16 and 17. A condenser 49 is shunted around the magnets of relay45.

The line circuit L passes from the magnet of relay 45 through the magnetof a neutral relay 50, termed the local shift relay, and through magnetsof relays 52 and 48, hereafter mentioned, to ground; the groundconnection including a shunted condenser 54, as shown. Local shift relay50 is so adjusted that when the armature of relay 30 is against its backstop, and the current in the line circuit L is relatively strong, thearmature of said local shift relay 50 is in contact with its front stop,and a circuit 56 is completed from current lead 43 through the shiftrelay contact and through a regulating rheostat 55 to the printers ortickers of the system. In practice, this circuit 56 works the shift andspring -winding mechanisms of the said printers, and is hereinaftertermed the shift circuit. The operation of the shift meclranisms of theseveral printers is accomplished by reversing the direction of thecurrent in this circuit 56, which reversal occurs when relay 30 isenergized, so that resistance 37 is included in the line circuitand theleak 39 is connected to said line circuit. When this occurs, thestrength of the line circuit is so reduced that the armature of relay 50is pulled back, and circuit 56 is connected to the opposite currentlead, 44. When relay 30 again operates and cuts resistance 37 out of theline circuit and disconnects the leak 39,

the armature of relay 50 is again attracted,

and the direction of current in circuit 56 again reversed, thusoperating again the shift mechanism of the printers.

For winding up the spring or other motors of the printers, currentpulses are transmittod at intervals through the flshift circuit. Forthis purpose a relay 51, operated automatically by an intermittentcurrent produced by a generator 57 or otherwise, is employed. This relayis adapted to complete connection from current lead 44 through the backcontact of local shift relay 50, if such back contact be complete,.toshift circuit 56. To avoid complication, 1 cause this springwindingrelay to operate only when the shift relay armature is in one of its twopositions; though it is easy to cause the spring-winding relay tooperate with'the said armature of re lay 50 in either position. Howerer,it is sufficient to operate the spring-winding mechanism at intervalsonly, and the connections and apparatus are somewhat simplified byemploying current of one direction only to operate the spring windingmechanism, and by permitting this current to be transmitted only whenthe armature of the shift relay is in a corresponding position, so thatthe shift mechanism of the printers will not be affected by thespring-winding pulses.

The controlling circuit 5h of the springwinding relay passes through acontact of a line relay 52 which breaks said circuit whenever aprolonged pulse, such as causes the operation of the shift mechanism ofthe printers, passes through the line circuit; the spring of this relaybeing so adjusted that during the normal alternation of current pulsesin the line circuit, circuit 5b remains closed. This relay 52 insuresthat the back stop of the local shift relay 50 shall be connected tocurrent lead 44 whenever the shifting mechanism is to be operated.

Local repeating relay 48 is so adjusted that it operates only when thecurrent in the line falls nearly to zero, as is the case when, throughthe operation of the repeat key 32;, the very high resistance 41 isincluded in the line circuit. \Vhen this occurs, the armature of relay-4%; falls back and opens the printing circuit. ,W'hen repeat key 33 isreleased and the high resistance 4] cut out of the circuit, the armatureof relay 48 is again attracted, and the printing circuit is againconnected to one of the current leads, thus producing in said circuit asecond long pulse and causing the operation of the press mechanism,whereby the character last printed will be printed a second time. Inthis way, by operating the key 33, a character may be repeated as oftenas desired.

If the repeat key 33 be operated. while the armature of shift relay 50is against its front stop, said armature ialls back, thus operating theshift mechanism of the printers: but since the repeated character is-motprinted until the releaseof key 33, and since relay 50 is very much morerapid in operation than relay 48, upon the release ofthe key 33 thearmature of relay 50 moves forward again and brings the shift mechanismsof the printers back to their normal condition before. the.

press mechanisms of the said printers operate. In this way, a characterof either bank of keys may be repeated by means of key 38.

When a number of printers are to be oper ated from the same line circuitand translating apparatus, I preferably employ a plurality of separateprinter circuits, each including'merely the number of printers which canbe worked to advantage in series. Each such printer circuit then has itscorresponding line polar relay and line shift relay, said line polarrelays and shift relays connected in multiple branches of the linecircuit, as indicated in the drawing, in which 45 and 50 designateanother line polar'relay and shift relay for a second printer circuit.In'this v way I avoid excessive impedance, self-induc- P, P, withoutused tion etc. in the line circuit, and excessive sparking atthe contactpoints of the relays.

In the diagram I illustrate diagrammatically two series of printers, P,P, P, and P, attempt to illustrate the .mechanism of said printers,which is well known.

Fig. 2. shows the essentials of one of the many forms of two-wiretickers which may be in my. system. In said drawings, M designates themain or type wheel shaft, N and N designate type wheels thereon, 0 anescapement wheel, 0 an 'escap'ement anchor Q designates a pinion on saidshaft through which the shaft may be driven from "a motornot shown. Rdesignates a press arm operated by magnet,R and carrying. pads S and Smountedtobe shifted alternately into operative position by the shiftingarm T operated by shl-ft'magnet T.

1s a magnet for Windmg a spring motor, not shown, for driving the Theoperation of this system is. as follows: i

, type wheel shaft.

tlon owing to the rapid hown, type wheel ma net T and spring windingmagnet U are in t e same circuit,-which is circuit 56, of Fig. 1; Y and;the eseapement magnet O and press magnet R circuit'46 of Fig. 1.

of relay at station B. will be in rapid vibrareversal of the current incircuit 15 by commutator 14. When one of the transmitter keys, forexample, one of the keys offbank 4, is depressed, as soonas e contact?arm of the sunflower makes con= tact with the corresponding contactsegment the stop magnet 11 will be energized, the rotationof shaftllarrested, thus arresting the vibration of. and

the'consequent vibrati on of the armature thus producing in circuit 46 aulse which willenergize the press magnetic the,'several printers incircuit 46, causing said printers to 'print"- the character are inanother circuit, which is the the armatures of relays l6 and 17 l bcorresponding to the key depressed. If, instead of a key of bank 4, akey of bank5 be depressed, the same operations will occur, butinaddition, the armature of relay 25 will be reversed, closing circuit 29and thus ener-' gizing the magnet of shift relay 30. The shift relaywhen it operates introduces resistance 37 into the line circuit andconnects the leak 39 to such line circuit, thereby decreasingconsiderably the strength of the line current; and such decrease will soreduce the strength of the magnet of relay that the spring of said relaywill draw back the armature there'- of, thus reversing the direction ofcurrent incircuit 56. As soon as the key operatedis 1 released, shaft 1and commutator 14 begin to rotate, the armatures of relays 16, 17 and 45beginto vibrate again, and the armature of relay 51. breaks contact withits front stop.

After the depression of one of keys 5 and consequent operation ofthe-shifting devices, said devices remain in their shifted conditionuntil one of keys 4 is depressed, whereupon the armature of relay 25will be deflected to the right, breakingthe circuit of shift relay'30and'thro\i-'ing out of .circuit resistance 37 and leak 39, and thusincreasing the-strength. of

current in the line so that relay 50 will attract its armature and,relay 51 operating simultaneously, the polarity in circuit 55 will bereversed again, and the shifting mechanism of the several printersoperated accordingly.

It is obvious that the system herein dc scribed is susceptible of manyvariations and modifications and I do'not limit myself to the particulardetails of construction, arrangement and operation herein illustratedand described. I

In the diagram I have shown the various current leads provided Withfuses, resistance and indicating lamps, etc These parts and theirfunctions are well known and it is not necessary to describe them indetail.

That I claim is:

1. YA printingtelegraph system comprising n combination, a line circuit,one or more multi-circuit printers comprising printing and shiftmechanisms-each having inde end-. entcontrollingmeans, printing and shit circuits for said printers, a transmitter for said printers comprisingmeansfor producing a pulsating current in such line circuit and forPIOlOIIgI gIIg the pulses therein at will, and compris g also means forproducing other class of signals in said line, circuit, and a.transla'ting apparatus se arate and distant from said transmitter andprinters, but connected with saidftransmitter through said line circuit,and comprising means operated and the prolonga- 4 tion of pulsestherein, controlling the printingcircuit of saidprihters and comprislngalso means'o erated by the other class of signals in said ine circuitfor controlling the shift circuit of said printers.

translating apparatus comprising means operated by one class of signals.in said line circuit for operating printing mechanism in a printer,and'further com rising means controlled by another class of signals inthe line circuit for operating shift mechanism of a printer, and'furthercomprising means operated by a third classof signals in said linecircuit for causing repetition of the character last printed. i

3. In a printing telegraph system, the combination of a transmitter,translating apparatus, a connecting line circuit, and printing and shiftcircuits for a printer controlled by said printing apparatus, saidtranslating apparatus comprising means operated by one class of signalsin said line circuit for producing an alternating current'in suchprinting circuit and for prolonging one pulse of such current atwill,said translating a paratus further comprising means controlled byanother class of signals in the line circuit for controlling said shiftcircuit, and further comprising means controlled by a third class ofsignals in the line circuit for transmittin through such printingcircuit an additiona pulse of the same direction as the preceding pulse.

4. In a transmitter for printing telegra h systems, the combination ofmeans or transmitting an alternating current through a line circult, asunflower and contact arm therefor passing over the contacts of saidsunflower in synchronism with the alternations in said circuit, akeyboard and means operated by the several keys thereof for arrestingsaid sunflower contact arm in corresponding positions and simultaneouslyprocircuit, and shift an repeat re ays, arranged when operated to varythe current strength,'one to a greater extent than the other, and meansfor operating said relays.

5. In a transmitter for printing telegra h systems, the combination ofmeans or transmitting an alternating current through a line circuit, asunflower and a contact arm I therefor passing over the' contacts ofsaid sunflower 1n synchronism'with the alternaf longing the correspondincurrent ulse insai tions in said circuit, a keyboard and means operatedby the several keys thereof for arcrease or increase the strength of theline current according to ,the position. of its armature, and a secondrelay controlling saidvshift relay, and controlled by the keyboard.

7. In a transmitter for printing telegraph systems, the combination ofmeans for transmitting an alternating current through a line circuit, asunflower and contact arm therefor passing over the contacts of saidsunflower in synchronism with the alternations in said circuit, .akeyboard and means operated by the several keys thereof for ar-vresting. said sunflower contact arm in corresponding'positions andsimultaneously prolonging the corresponding current pulse in saidcircuit, a repeat relay and a high .resistance conductor arrangedto beintroduced.- thereby into the line circuit,and a circuit for said relayand a repeat key controlling the same.

8. In a printing telegraph system, the combination with a line circuit,and a transmitter comprising means for transmitting analternating-current and for prolonging one of the current pulses atwill, and further comprising means for reducing at will the strength ofthe line current, of translating ap aratus comprising a line polar relayin such line circuit arranged to repeat the alternations in such circuitinto a local printer circuit, and a line neutral shift relay in the saidline circuit, operated by increase and decrease of line currentstrength, and controlling a local printer shift -circuit.

9. In a printing telegraph system, the

.combination with a line circuit, and a trans- -m1tter comprising meansfor transm ttmg'an alternating current and for rolonging 'one of thecurrent pulses at will, and further comprising two independent means forreducing the strength of the line current, one to a greater extent thanthe other, of translating apparatus comprising a line polar relay insuch line circuit arranged to re eat the alternations in such circuitinto a coal printer circuit,and comprising further line neutral shiftand repeat relays, the repeat relay operated by a relatively greatdecrease in strength of the line current and arranged,

by its operation to transmit through the local printer circuitcontrolled by said line 'polar relay an additional prolonged currentpulse of the same polarity as the preceding pulse, the shift relayoperated by a relatively smaller de creasein strength of the line cur-,rent and controlling a local printer shift circuit.

10. Ina printing telegraph system, the combination with a. line circuit,and a transmitter comprising means for transmitting an alternatingcurrent and for prolonging one of the current pulses at Wlll, andfurther comprising means for reducing at will the strength of .the linecurrent, of translating apparatus comprising a'line polar relay in suchline circuit arranged to repeat the alternations' in such circuit mto alocal printer circuit, and comprising further a line neutral further amotor winding relay automatically operated and'arrangedto transmitperiod ic ally through said shift circuit current pulses to operatemotor winding mechanism of said printers.

11.. In a printing telegraph system, the combination with a linecircuit, and a trans mitter comprising means for transmitting analternating current and for prolonging one of the current pulses atwill, and further comprising means for reducing at will thestrength ofthe line current, of translating apparatus comprising a line polar relayin such line circuit arranged to repeat the alternations in such circuitinto a local printer circuit, and comprising further a line neutralshift relay operated by increase and decrease of line current strength,and controlling a local printer shift circuit, and comprising further amotor winding relay automatically o erated and arranged to transmitperiodic ally through said shift circuit current pulses to operatemotorwinding mechanism of said printers, and means preventinginterference between theshift and motor Winding relays.

12. In a printing telegraph system, the combination with a line circuit,and a transmitter comprisingmeans for transmitting an alternatingcurrent and for prolonging one of the current pulses at will, andfurther comprising means for reducing at will the strength of the, linecurrent, of translating apparatus comprising a line polar relay in suchline circuit arranged to repeat the alternations in such circuit into alocal printer circuit, and comprising further a line neutral shift relayoperated by increase and decrease of line current strength and ar rangedto reverse current direction in a local printer shift circuit, andcomprising further a motor Winding relay automatically driven andarranged to render intermittent the current in said local printer shiftcircuit Without change of the direction of the cur rent therein.

13. In a printing telegraph system, the combination of a transmitter,translating apparatus, and a connecting line circuit, said translatingapparatus comprising means controlled by signals in the line circuit forcontrolling printing mechanism of a printer through a local printingcircuit, and comprising further means controlled by other signals in theline circuit for reversing the direction of current in a local shiftcircuit of such local printer, and comprising further a motor Windingrelay automatically driven and arranged to render intermittent thecurrent in saidiocal printer shift. circuit Without change of thedirection of the current therein. i

14. In a printing telegraph system, the combination of a transmitter,translating apparatus, and a connecting line circuit, said translatingapparatus comprising means controlled by signals in the line circuit forcontrolling printing mechanism of a printer througha local printingcircuit, and coniprising further arelay controlled by other signals inthe line circuithaving opposed contacts connected to sources of currentsupply of opposite polarity, said relay ar-- strength of the linecurrent, of translating.

apparatus comprising means operated by current reversal in such linecircuit for operating printing mechanism. of, a local printer through alocal printer circuit, and comprising further a relay controlled byother signals in the line circuit having op posed contacts connected tosources of current supply of opposite polarity, said relay arrangedthereby to reverse the direction of current in a local shift circuit ofsaid printer,

said translating apparatus comprising iurther a motor Winding relayautomatically operated through a local circuit and having a contactinterposed between. one of the contacts of said first relay and thecorresponding source. of current supply. and another relay located insaid line circuit, but adjusted to respond only to prolonged pulsestherein, said last-named relay comprising a contact through which theoperating circuit of said motor Winding relay passes, which contact isbroken when the last-named relay responds to a prolonged pulse.

16. In a printing telegraph system, the combination of a transmitterarranged to transmit an alternating current through a line circuitcomprising means for prolonging oneof the current pulses at u ill.translatin apparatus and a connecting line circuit, saio translatingapparatus comprising a shift relay controlled by appropriate signals inthe line circuit and arranged to control shift mechanism of a printerthrough a local shift circuit, said translating apparatus furthercomprising a motor winding relay automatically operated through a localcircuit and arranged t produce a pulsatory current in the circuitontrolled by said shift relay, and another relay located in said linecircuit, but adjusted to respond only to prolonged pulses therein, andcomprising means rendering said motor winding relay ineffective uponsuch shift circuit during the transmission of a long pulse through suchiine circuit. 7

17. In a printing telegraph system, the combination of a transmitter,arranged to transmit signals for operating printing and shift mechanismof a printer, translating apparatus and a connecting line circuit, saidtranslating apparatus comprising a plurality of sets of printing circuitand shift circuitvrelays, a plurality of two-circuit printers comprisingirinting mechanism adapted to be operate by a printing circuit and shiftmechanism adapted to be operated by a shift circuit, and separateprinting and shift circuits for each of said printers, controlled bycorresponding printingcircuit andshift circuit relays of saidtranslating apparatus;

said sets of relays connectedin multiple to the line circuit.

18. In a printing telegraph'system, the

" combination of a transmitterparranged to transmit signals foroperating printing and shift mechanism of a printer, translating apparatus and a connecting line circuit, said translating apparatuscomprising a plurality of sets of printing circuitqand shift circuitrelays, aplurality of two-circuit printers com-. prising rintingmechanism adapted to be operate by a printing circuit and shiftmechanism adapted to beoperated by ashiftcircuit, separate printing andshift circuits for each of said printers, controlled by correspondingprinting circuit and shift circuit relays of said translating apparatus;said sets of relays connected in multiple to the line circuit; and asingle repeat relay likewise connected to thelline circuit and arrangedtocause repetition of rinting in all of the said printers controlled bysaid translating appaa ratus.

In testimony whereof I affix my signature in the presence oftwowitnesses.

OHN G. BARCLAY.

Witnesses:

B. STEIN, O. A. Van BRUnT.

